We spoke to an insider familiar with the situation who said that Gomez sure had her suspicions. “Did she catch him red-handed? No,” the insider explains. “But I think she was having trouble trusting him lately.”

“The problem lies with his team and his image,” the insider says. “His management is trying to do what Justin Timberlake did: successfully transition from boy to man in the public eye. To do that, they’ve been sexing up his image and booking him gigs like the Victoria’s Secret show. His songs, his videos, his appearances — everything’s gotten sexier. There are a lot more women around than there used to be.”

“When they first started dating, it was just young girls chasing after Justin,” the insider adds. “Selena could handle that. But now, seeing him working closely and hanging out with grown women — models no less! — it was probably very unnerving. I think she figured that if he hadn’t been tempted yet, it would probably happen sooner or later.”

“At the end of the day, she didn’t want to get caught looking like a fool,” the insider concludes. “So she cut him loose. But they’ll both be fine. I don’t think either of them is going to be wanting for company.”